CF-Incidents WAF - WAF Release - 2026-07-01

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This release adds targeted coverage for a path traversal flaw in Fortinet FortiSandbox (CVE-2026-39813) and transitions the Anomaly:Header:User-Agent - Fake Bing or MSN Bot rule action from Block to Disabled.

Key Findings

  • CVE-2026-39813: A path traversal vulnerability in Fortinet FortiSandbox allows remote, unauthenticated attackers to read arbitrary files from the underlying filesystem due to insufficient validation of user-supplied input paths.
RulesetRule IDLegacy Rule IDDescriptionPrevious ActionNew ActionComments
Cloudflare Managed Ruleset...d84c92c9N/AFortinet FortiSandbox - Path Traversal - CVE:CVE-2026-39813LogBlock
This is a new detection.
Cloudflare Managed Ruleset...c12cf9c8N/AAnomaly:Header:User-Agent - Fake Bing or MSN BotEnabledDisabled
We are changing the action for this rule from BLOCK to Disabled

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